"Bacteria Talk", a movie profile of Bonnie Bassler from NOVA ScienceNow, January 2007, with a discussion of quorum sensing.
(This is a large file. It will take some time to load. If the movie does not load, follow the ScienceNow link to the original file.)

Bacteria Talk, an entertaining interview with Bonnie Bassler, the first to recognize quorum sensing in bacteria, with links to the full length movie profile of Dr. Bassler.
(This is optional but very useful.)

What is Quorum Sensing? A short explanation of quorum sensing from the University of Nottingham Quorum Sensing Research Group.
(You should know the first page of this article.)

Quorum Sensing in Bacteria: We Two are One. A more in depth discussion of quorum sensing, including the history of its discovery and the current status on research.
(This includes more information than you need to know.)

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Chapters 7 and 8

ATP Synthesis using a Hydrogen Ion/Proton gradient.
Note: This movie may be large so please give some time for it to load.

The following flash animations may help explain how electrons flow through a membrane in order to generate energy through Photosynthesis and Respiration. These contain extra information that you do not need to know to the exam and are a little dry, but help give a visual representation of what is going on.